For now I'll give you a bit of advice on getting a start at it. Code can come into it later if you still get stuck on parts.
First thing to do is to realize that anytime you are writing a menu driven program (I'm guessing for the command line!), you have to start with one function of the menu at a time. You aren't really writing a menu driven program so much as 6 programs that get called by the one that displays the menu.
Begin with the data structure you'll need and implement it as needed for the first menu choice.;-) Take it in small bites and it shouldn't be too difficult. Post again if you're still stuck later. Below is the URL of a couple of sites. The first is a good reference page for C and C++ both. The second is a page with many links to goodies and tutorials for a bunch of languages.
Good luck on it, remain calm:-)